Of all the following, which element has the highest first ionization energy? Alu

Question

Of all the following, which element has the highest first ionization energy? Aluminium magnesium silicon sodium List all the elements Na, Ca, Rb, Cl, He in order of decreasing first ionization energy. He > Cl > Ca > Na > Rb(This order indicates that He has the highest first ionization energy) He > Ca > Cl > Na > Rb He > Na > Cl > ca > Rb Rb > ca > Cl > Na > He Which two ions have the same electron configuration in the ground state? Rb^+ and Cs^+ Ba^2+ and T^- Se^2+ and I^- Fe^2+ and Fe^3+ Which ion has the smallest ionic radius? Li^+ Na^+ K^+ Rb^+ Which ionization process requires the most energy? p(a) rightarrow p^+(e) + e^-

Explanation / Answer

3) C. Silicon

4) A. He > Cl > Ca > Na > Rb

5) A) Cs+ and Rb+ ( both are in a same group 1s)

6) A. Li+ ( has only K shell therefore smaller in size)

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